When making a fantasy football trade, you want to try to buy players right before they go off. That's how you maximize value. These are the top fantasy football buy-low trade candidates heading into Week 8.

RB Jordan Mason, Minnesota Vikings

Mason returned from injured reserve in Week 7 and immediately took over the starting job in Minnesota. Aaron Jones had played great in his absence, but the 31-year-old handled a massive workload, which clearly took a toll on his body.

Jones was already nursing a knee injury heading into last week, and he is not practicing this week because of it. Mason isn't going to be locked in as the lead back in Minnesota, and you should get him now while you still can.

In Week 7, Mason played on 64% of the offensive snaps to 25% for Jones. Mason also out-carried Jones 15-8 and had two targets to Jones's one.…